The product of nuber of turns,area of coil and current is

The product of ampere turn and area of coil is

The product of number of turns and current of loop is

In a primary coil 5A current is flowing on 220 volts. In the secondary coil 2200V voltage produces. Then ratio of number of turns in secondary coil and primary coil will be

Assertion: The tangent galvanometer can be made more sensitive by increasing the number of turns of its coil. Reason: Current through galvanometer is proportional to the number of turns of coil.

A circular coi9l of radius r and nuber of turns n cirries a current I. The fields at a small distance h along the axis of the coil and the at the centre of the coil are measured. What is the relation between B_("centre") and B_("axis")?

If a circular coil area A,number of turns n carries a current I then it is equivalent to a magnetic dipole.The magnetic moment of a coil is,

A rectangular coil of 25 turns, area of 25cm^(2) and resistance of 4 ohm//turn is placed perpendicular to a varying magnetic field, which changes at the rate of 500 T//s . The induced current in the coil is

A rectangular coil of 25 turns, area of 25 cm^2 and resistance of 4 ohm//turn is placed perpendicular to a varying magnetic field, which changes at the rate of 500 T//s . The induced current in the coil is